Procedure A, Task 3: Customer's Electrician - Dell EMC VMAX 250F Site Planning Manual

Best Practices for AC Power Connections

Procedure A, Task 3: Customer's electrician

Site Planning Guide VMAX 250F, VMAX 450F, VMAX 850F, VMAX 950F with HYPERMAX OS
124
NOTICE
This task is performed by the customer's electrician.
Procedure
1. Working with the EMC Customer Engineer, turn ON all the relevant circuit
breakers in customer-supplied PDU 2.
Verify that only power supply and/or SPS LEDs in power zone A are ON or
flashing green in every bay in the array.
Note
If all power supply and/or SPS LEDs in a bay are ON or flashing green, the bay
is incorrectly wired because the AC power to both EMC power zones is supplied
by a single PDU, that is, customer-supplied PDU 2. Wiring must be corrected
before moving on to the next step.
2. Turn OFF the relevant circuit breakers in customer-supplied PDU 2.
Verify that the power supply and/or SPS LEDs that turned green in the
previous step changed from green to OFF and/or flashing yellow. The yellow
SPS lights flash for a maximum of 5 minutes.
Note
Note that power supplies connected to an SPS continue to have green lights
ON while the SPS yellow light continues to flash indicating the SPS is providing
on-battery power.
3. Repeat step 1 and step 2 for power zone B and customer-supplied PDU 1.
4. Turn ON all the relevant circuit breakers in customer-supplied PDU 1 and
customer-supplied PDU 2.
5. Label the PDUs as described in PDU labels on page 126.